4.10's ?? 3.73's?... who has them - Chevy Impala SS Forum
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post #1 of 29 (permalink) Old 03-17-2012, 09:16 PM Thread Starter
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4.10's ?? 3.73's?... who has them

this is for the wagon in my sig (the text in my sig belongs to my stolen 94 not the wagon so don't read that thinking that's what the wagon has)

ever since i did the motor in this i knew i needed to do the gears.

then the tranny needed a rebuild last year so instead of a stock rebuild i did a stage 3 with a 3200 edge 9.5" converter.

so now i really feel the need for the gears (it has 2.93's).

so i come to you with a question: who has 4.10's in their "DAILY DRIVER" (that doesn't see a whole lot of freeway driving).

I spoke with a local club member about doing a 6 speed conversion and he gracefully said he would help but now i'm undecided since everything is new (tranny converter etc), so i'm thinking maybe i should leave it alone and just keep it as an automatic.

what i would like to hear from you guys is not raw data about rpm's and this and that , i can find that info all over the internet using google, what i really am interested in is your "seat of the pants" feeling if you have the 4.10's in your wagon.

so who has it? who's driven one? who has taken a ride in one? your thoughts? input?

would appreciate feedback and any input you might have on this

STOLEN ON JUNE 8TH OR 9TH 2003 FROM TACOMA,WA
ISSF MEMBER #282
94 9C1,SS clone,DCM,SSRI,HA/F-body sway bars,3.42's Bonnies,floorshift,Stillen front,Smoothy rears,billet grille,white face Z-28 dash, Dynomax mufflers,Tri-Y,eibach,J&M control arms,NOS 100 shot,MSD digital+6&coil,MSD super conductors,metco safety loop,Dynotech driveshaft 12.98@110MPH


Last edited by V8killer; 03-18-2012 at 07:41 PM.
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post #2 of 29 (permalink) Old 03-17-2012, 11:27 PM
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I have 3:73's and I feel like the car "needed" the gears due to my 22's. Now the car moves similar to stock wheels. I have yet to drive the car on factory wheels but the gears are great on the highway and city which is what I wanted. I'm at 2300 rpms at 70 mph.

Now the bad is that I need a driveshaft since I'm part of the vibrations club. This mod has turned out to be expensive

..

1996 Impala Some mods / 2004 Bone stock GTO /1987 Grand National Modded

Rammit intake, Try Y headers, flowmaster catback, 3200 stall, FLP trans, Tuned PCM, 3:73 gears
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post #3 of 29 (permalink) Old 03-18-2012, 12:05 AM Thread Starter
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Quote:
Originally Posted by paco View Post
I have 3:73's and I feel like the car "needed" the gears due to my 22's. Now the car moves similar to stock wheels. I have yet to drive the car on factory wheels but the gears are great on the highway and city which is what I wanted. I'm at 2300 rpms at 70 mph.

Now the bad is that I need a driveshaft since I'm part of the vibrations club. This mod has turned out to be expensive
my tires aren't that tall, just over 28 inches with factory impala wheels on the wagon.

STOLEN ON JUNE 8TH OR 9TH 2003 FROM TACOMA,WA
ISSF MEMBER #282
94 9C1,SS clone,DCM,SSRI,HA/F-body sway bars,3.42's Bonnies,floorshift,Stillen front,Smoothy rears,billet grille,white face Z-28 dash, Dynomax mufflers,Tri-Y,eibach,J&M control arms,NOS 100 shot,MSD digital+6&coil,MSD super conductors,metco safety loop,Dynotech driveshaft 12.98@110MPH

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post #4 of 29 (permalink) Old 03-18-2012, 12:16 AM
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4.10's ?? 3.73's?... who has them

I put some 3:73's in my 1991 9C1 and it really perked it up. The gas mileage was still very good and boy did it accelerate on the highway. I always wanted to try 4:10's in my 1992 1A2 wagon, but I never did it. Please post what you do and the results.
Thanks
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post #5 of 29 (permalink) Old 03-18-2012, 03:53 AM
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Quote:
Originally Posted by V8killer View Post
so who has it? who's driven one? who has taken a ride in one? your thoughts? input?

would appreciate feedback and any input you might have on this
Puts hand up

With 4.10 and 27" tires the subconscious "happy place" was just over 60
3.73 closer to 70
Not saying I couldn't-didn't cruise faster

With your extra inch tire , you're are going to be smack in the middle of my 3.7-4.1

If you are really not usually driving on the highway, 4.10 might be the ticket for you.

Still only equates to 2.87 final
Gerry

Quote:
Originally Posted by V8killer View Post

the text in my sig belongs to my stolen 94 not the wagon so don't read that thinking that's what the wagon has
Here's an idea, update your sig, the car is gone


The First
LS7 T56 6 Speed Wagon
Katech cam , 550 rwhp
11.79 @ 120.65


LS7 T56 drag video
My Wagon
My W-31 Cutlass
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post #6 of 29 (permalink) Old 03-18-2012, 10:27 AM
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I'm going 3.73 with a 27" tire but after having 2.56's in the wagon. I actually had them laying around otherwise I would opt the 4.10's due to the weight of the car. I'm sure it will wake it up a little.

Gas mileage? Bah. The car is paid for.

Eric Seaman

1994 Caprice Wagon "Moby Dick"
1996 Impala SS 383 11.604@117 CC503 with 3.73's.
1.52 60' on drag radials
"Fastest NA 383 3.73 equipped car on the board"
ISSCA Member #2517
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post #7 of 29 (permalink) Old 03-18-2012, 10:59 AM
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Garage
I Dont have them.
But I was gonna buy 4.10's from Airmedic a while
back. The info I got from him was at around 80mph his
rpms were only 3k in a auto and he was on stock
impala wheels... That and on the highway if you got on the
gas it sure didnt have to downshift to start pulling again.

Hope that helps to your decission


JJ.. Filipino
95' Caprice Classic
Lt1 Swap
(With a Basic Tune)
Everything under hood is new
(except for the hoses)
Rocker'fosgate Speakers all around
(Highs, Amps, 12's)
baseball bat Steering wheel
Pioneer Double Din
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post #8 of 29 (permalink) Old 03-18-2012, 12:31 PM
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i've got 3.73's in the wagon. 22mpg interstate and 16 around town. have towed small enclosed and open car trailers no problem. full bolt-on stock cam/head cam car with built trans and 2800 edge. launches ok at the track for street gears i guess

1995 bolt-on RMW (thanks fred)
14.174/94.07 motor stock TB
13.946/96.44 motor 52mm TB
12.365/107.74 150 shot
9.377/152.69 '00 Hayabusa with 270lb rider
8.72/162 99 Hayabusa same fat rider
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post #9 of 29 (permalink) Old 03-18-2012, 06:13 PM
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Quote:
i've got 3.73's in the wagon. 22mpg interstate and 16 around town.

Seems to good to be true.

Anybody else with 3.73 getting this good MPG?


96 RMW DCM LIMITED, K&N Dual C.A.I,Pypes X pipe,Dynomax Super turbos,TB Bypass,CV Rear Sway Bar,18" OZ Racing wheels, 3.08 gears
98 VETTE CARMINE RED
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post #10 of 29 (permalink) Old 03-18-2012, 06:28 PM
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Originally Posted by etsfl View Post
Seems to good to be true.
most would say the same about a 4700lb car wtih stock 166K mile engine handing that 98 vette it's shorts

1995 bolt-on RMW (thanks fred)
14.174/94.07 motor stock TB
13.946/96.44 motor 52mm TB
12.365/107.74 150 shot
9.377/152.69 '00 Hayabusa with 270lb rider
8.72/162 99 Hayabusa same fat rider
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